Firearm



BIO: vrw

A. M. AUBERT.

FIREARM.

APPLICATION FILED JULY3, 1917.

Patented J an. 20, 1920.

2 SHEETSSHEET l.

A. M. AUBERT.

FIREARM- APPLICAflON FILED JULYB, [9|].

Patented Jan. 20,1920.

2 SHEETS-SHEET 2.

ALBERT MAURICE AUBERT, OF BILLANGOURT, FRANCE.

FIREARM.

Specification of Letters Patent.

Patented J an. 20, 1920.

Application filed m 3, 1917. Serial No. 178,505.

To all whom it may concern:

:XUBERT, citizen of the French Republic, residing at 3 Rue de la Ferme,'Billancou rt,

Seine, France, have invented certain new and useful Improvementsin Firearms; and I do hereby declare the followingto be a full, clear, and exact description of the in vention, such as will enable others skilled in the art to which it 'appertains to make and; use; the 'sa m'e, reference being to the .accompanying drawingafland jtoj letters. or figures of reference "marked thereon, which form a part of this specification;

This invention relates to portablefire'arms j I a "barrel and plercejd withanopeningjfor the possessing stability during firing and which enable either deliberate firing, or'more or less rapid firing,'to be performed at will:

The invention, moreover, relates to an arrangement of the principal elements, namely, the stock or butt, the trigger and'the barrel, and of other parts, whereby a firearm is produced which permits of firing, and particularly automatic firing, in a position of 7 static equilibrium ,of the weapon, owing to the physiological effects and the reflex effects of the individual being rendered n ull or favorable during firing, and therecoil'of the weapon under the efi'ect of the'mechanical" reaction due to firing being avoided, in such manner as to augment the precision and thef rapidity. of the sighting whatever may-be fi the'rapidity of the automaticity of theifiring and the variation sin that automaticity.

The butt is arranged perpendicular't'o the barrel, and in order to maintain .thesuppoit ing action of the fore-finger'this finger is not used. for firing. The trigger is arranged at" the side oflt'h'e fire arm, and thethumb' .used to' actuate the trigger. f Y

Referring to the drawings, in which likef' parts are similarly designated- Figure 1 is a side elevation of an automatic pistol constructed according to this invention.

Fig. 2 is a similar view illustrating the improvements applied to an automatic rifle.

In these two figures, the weapon is not furnished with a radiator for cooling pur poses.

Fig. 3 is a side elevation and Fig. 4: is

. partly a transverse section and partly an end Be it known that I, ALBERT MAURICE.

fable arrangement operated theautomatic breech shoe and which',' a't each operatio11,

brings a new cartridge into thebreec'hcham- 3 her after the firing of 'eachjshot, 3i's the automatic" 'slide; sliding parallel with the ejection of the cartridge and also for the eventual hand charging. 4 is the trigger, movable about anaxis 5, which regulates the fire and which for this purpose presents a nose 12 capable of engaginginfafnotch 13 in the automatic slide 3, the trigger is duplicated on the other sidejat 4, a hinge longitudinally formed upon each trigger permits the folding of the trigger toward the top, so that the trigger which is not in use may be folded against the weapon. 6' is a link by which the barrel 1 is' connected with the frame 7 of the weapon (Fig.1.). "8 is an arm or projection fixed on the barrel and taking between two springs 9 and 10 re fspectively, these {the part 7 Whenthe weapon is furnished 7 with a' radiator, as such radiatoroccupies the centralpart, a similarpair ofjsprings is W disposed on each side, asseen in Fig. 4, at

jsprin'gs 7 being, housed in 9, "10, 9 and 10 -A cartridgei l l is indii The trigger 4' is maintained in position owing to the fact that it has an arc-shaped.

and to cause it to enter the notch 13 when it is opposite the same, at the same time disengaging the catch or sear formed by the upper part of the part 15 and which engages the projection formed upon the hammer 16, the function of which is to strike the percussion or firing pin 17. Also beneath this hammer there is a presser which is pressed against the hammer by a spring 18. The depression of the thumb to a sufficient extent.

produces, therefore, the release of the hammer owing to the action of the cam 14: and the shot is fired.

It may now be mentioned how the marksman is able to regulate the speed of the automatic firing by producing a more or less energetic braking action upon the automatic slide by means of the nose 12 of the trigger a. The frictional action between the two surfaces differs according to the direction of movement of the slide. When the slide recoils, the action of the thumb is not comparable with the action of the recoil which is predominant and tends to remove the brake since it considerably reduces the friction. When the slide returns, on the contrary, its action is again predominant (this time under the action of the spring) but the thumb acts then in the same sense, that is to say it tends to wedge the two surfaces in these conditions, V the modifications of pressure of the thumb effect variations 1n the braking action to any value from zero up to complete blockage and arrest of the slide. In order to release the latter it is necessary to lighten the pressure of the thumb; now, the latter is the inverse action of that required for pressing the nose 12 of the trigger into the notch 13 in the slide.

Therefore a shot will only be fired if the pressure of the thumb be renewed. Thus the variation of the counter pressure of the thumb controls the periodicity of the firing.

The weapon illustrated in the drawing is supposed to be furnished with a double safety device for rendering firing impossible when the weapon is not in actual use. Such safetydevice may comprise a hand lever 19 and a catch device 20. The'hand lever 19, at its inner end, engages, by means of a nose 0r pro ect1on, with the hammer "16 the function of which is to strike the percussion or firing pin. As the lever 19 is made to project from the rear of the butt,

itlis depressed and disengages from the hammer 16 when the weapon is taken in the hand or. is placed against the shoulder. The lever 19 is within the butt, whereas the catch 20 is arranged externally thereof upon a pivot, and the lowering of the front portion of this catch 20 causes it to obstruct the trigger, the rising of the rear part at the same time bringing the rear extremity into engagement with the notch 21 or the notch 22 of the automatic slide, for the purpose of maintaining the latter in. one or other of and also that any other percussion arrangement could be used. Importance attaches, however, to the trigger 4 furnished with the nose 12 capable of being pressed against the automatic slide and entering a notch therein, and also furnished with a cam device for actuating the percussion devices.

The means for cooling the barrel, owing to its disposition, cooperates to assure for the weapon, whether a pistol, Figs. 3 and 4, or a rifle, .Fig. 5, ballistic qualities, the center of gravity being disposed distantly from the axis of fire and the over-balance which could result from this addition being diminished. This cooling arrangement comprises a sheath 23 of metal which is a good conductor of heat, such as copper for example, and which abstracts the heat from the barrel and conducts it into the radiator 24, also of copper, the fins of which are arranged vertically.

A hinge 26 and pins or bolts 27 permit of rapid "fixing and dismonntillgjinib radiator, while affording a secure mode of fastening. The radiator 24 has the most elongated form possible so as to bring the center of gravity as far as possible from the axis of the barrel while also assuring an energetic cooling, as the difference in temperature between the upper and lower parts is very great. The radiator is only secured to the barrel, so as to permit of the free movement of recoil. The heat which comes from the heated barrel is imparted to the upper part of the surrounding air. 1

. I claim I 1. In an automatic fire arm, the combination with the frame and the breech slide thereon, said slide having two notches; of

an arcuate shaped trigger pivoted in the frame, a trigger leverthereon projecting. at the side thereof for operation by the thumb,

said arcuate trigger having a nose,- for engaging said notches- 2. In an automatic fire arm, the combination with the frame and the breech slide thereon having notches;

ofan arcuatev trigger member mounted in the frame,sa1d a nose for engaging said and slidable over said barrel, of a radiator having a barrel portion secured to the barrel beneath said slide, and depending radiator 15 plates secured to said portionQwhereby said slide will move back and forth over the radiator.

In testimony that I claim the foregoing as my invention, 1 have signed my name in 20 presence of twosubscribing wltnesses.

ALBERT MAURICE AUBERT.

Witnesses:

CHAS. P. PRESSLY, CHARLES ADDY. 

